Here see the attachment....:)
Answer:
C
Step-by-step explanation:
Once

We know that 
There are infinity values for
, but considering 
Below we have all the solutions for 
Negative:

Positives:

We can see that 
Answer:
1/10
Step-by-step explanation:
5/20 x 8/20 = 1/10
The GCF of 24 and 48 is 24.
48 / 24 = 2
24 / 24 = 1